CN212763001U - Dead weight self-centering mechanism of brake disc - Google Patents
Dead weight self-centering mechanism of brake disc Download PDFInfo
- Publication number
- CN212763001U CN212763001U CN202020926536.7U CN202020926536U CN212763001U CN 212763001 U CN212763001 U CN 212763001U CN 202020926536 U CN202020926536 U CN 202020926536U CN 212763001 U CN212763001 U CN 212763001U
- Authority
- CN
- China
- Prior art keywords
- positioning
- steel ball
- brake disc
- cone
- vertebral body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a self-weight self-centering mechanism of a brake disc, which comprises a movable shaft, wherein one end of the movable shaft is sleeved with the brake disc through a steel ball centering structure; the base is used for connecting the positioning end of the movable shaft; the steel ball core expanding structure comprises an upper cone body, a lower cone body and a plurality of steel balls uniformly distributed on the circumferential outer side of the lower cone body; the lower vertebral body is connected with the movable shaft; the lower vertebral body elastically supports the upper vertebral body through a spring; in the process of contacting the upper cone with the positioning surface of the brake disc, the positioning hole of the brake disc is sleeved outside the steel ball; after the positioning end face is contacted with the positioning face of the brake disc, the upper cone body presses the lower cone body under the action of gravity of the brake disc, and meanwhile, the steel balls can be driven to move along the radial outer side of the positioning hole, so that the positioning hole is positioned and tensioned. The utility model discloses be convenient for product spare convenient, laborsaving hang into examine utensil, put at product spare after examining the utensil, the product location face falls to examine a base face on, the product dead weight is ejecting with the steel ball, rises and tightly with the hole location again.
Description
Technical Field
The utility model relates to an examine technical field, concretely relates to dead weight self-centering mechanism of brake disc for brake disc.
Background
The brake disc is an important part of the automobile, is the most important security part, and is directly related to the problem of the automobile and the transportation worker, no matter the brake disc is a commercial vehicle with the load of dozens or hundreds of tons, or a passenger vehicle and a motorcycle which bear several persons, the quality of the brake disc can not be realized, the quality and the quality of the brake disc directly relate to the safety of personnel or goods, the brake disc has various changes due to the different types and sizes of the vehicles, in order to ensure the quality in the processing process of various brake discs, engineering technicians design various types of checking tools, but most of the brake discs are fixed with size shafts, for small-sized vehicles, the brake disc is small in size and light in weight, an operator can operate the brake disc when detecting the brake disc on the checking tool, the brake disc detection of the commercial vehicle is not only technical work, but more importantly physical effort, generally, the brake disc is hung on a fixed shaft of the checking fixture through a hanger, and the fixed shaft and the center hole of the brake disc are generally used as positioning holes to be matched and positioned.
In the prior art, in order to facilitate the brake disc to be hung on the fixed shaft, a certain large gap is formed between the fixed shaft and the positioning hole of the brake disc, but when the positioning requirements of the positioning hole on the dimensional items such as the end face run-out or the verticality or the thickness of the brake disc are strictly measured, the measured dimensional item value is inaccurate.
If a small gap exists between the fixing shaft and the positioning hole of the brake disc, the fixing shaft and the brake disc are difficult to separate. For example, when the brake disc is positioned, the positioning sleeve is inserted into the center hole of the brake disc in a manner that the small diameter end faces downwards, so that the brake disc is positioned coaxially with the positioning rod, and the positioning sleeve is in a cone frustum-shaped structure.
In conclusion, the brake disc and the fixed shaft are hung and separated difficultly or the brake disc is positioned insecurely in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a guarantee simultaneously that brake disc locating hole location is accurate, reliable and the brake disc with the fixed axle hang into with the separation laborsaving, the dead weight self-centering mechanism of quick brake disc to solve the above-mentioned weak point in the technique.
In order to achieve the above object, the present invention provides the following technical solutions:
a deadweight self-centering mechanism for a brake disc, comprising:
a base to support the self-centering mechanism;
the detection end above the movable shaft is sleeved with and supports the brake disc through a steel ball core expanding structure, and the movable shaft is vertically connected with the base in a sliding manner;
the steel ball expanding core structure comprises an upper cone fixed with the detection end, a lower cone, a plurality of steel balls and an annular groove for accommodating the steel balls;
the steel balls are arranged in the circumferential direction of the positioning holes of the brake disc, can move along the radial outer side of the brake disc in the annular groove and are used for being in contact with the positioning holes of the brake disc;
the lower vertebral body supports the upper vertebral body through a spring with a gap;
the positioning plate is fixedly connected with the upper part of the base, the lower part of the positioning plate is sleeved outside the positioning end below the movable shaft, and the upper part of the positioning plate supports the lower vertebral body;
a positioning end surface component which is rigidly connected with the upper vertebral body and provides a positioning end surface contacted with the positioning surface of the brake disc;
the positioning end face of the reference surface component is contacted with the positioning face of the brake disc and then moves downwards, so that the upper cone body is driven to downwards contact with the lower cone body, and meanwhile, the upper cone body can drive the steel balls to move along the radial outer side of the positioning hole of the brake disc, so that the positioning hole is positioned and tensioned.
Furthermore, the positioning end of the movable shaft is rotatably connected with the positioning plate;
the upper surface of the positioning plate supports the lower cone through an end face bearing.
Furthermore, a positioning end of the movable shaft is sleeved with a limiting part, and the limiting part comprises a limiting shaft and a positioning gasket which are fixed below the positioning end;
a positioning gasket is arranged above the limiting shaft in a penetrating way;
the lower part of the limiting shaft is connected with the positioning gasket in a clamping manner through a connecting nut.
Furthermore, a screw hole is formed in the upper vertebral body, a jackscrew is arranged above the screw hole, and the spring is arranged below the screw hole;
the length of the spring can be adjusted by screwing the jackscrew.
Furthermore, a first supporting surface which can be tangent to the upper part of the steel ball is arranged on the outer edge of the bottom surface of the upper cone;
the first supporting surface is a conical surface, and the downward movement of the first supporting surface can drive the steel balls to move along the radial outer sides of the positioning holes.
Furthermore, a second supporting surface for supporting the lower part of the steel ball is arranged on the outer edge of the top surface of the lower cone;
the steel ball core expanding structure also comprises a lower steel ball retainer movably sleeved above the lower cone, and a gap is formed between the lower steel ball retainer and the lower cone in the axial direction;
the steel ball core expanding structure also comprises an upper steel ball retainer movably sleeved below the upper cone body, and a gap is formed between the upper steel ball retainer and the upper cone body in the axial direction;
a fourth conical surface is arranged above the lower steel ball retainer, and a third conical surface is arranged above the upper steel ball retainer;
the first supporting surface, the second supporting surface, the fourth conical surface and the third conical surface form the annular groove together;
and a certain interval is arranged between the radial edges of the upper steel ball retainer and the lower steel ball retainer so as to form a movable opening for the steel balls to extend out.
Furthermore, the top surface of the upper cone body is the positioning end surface, and the steel ball is positioned below the positioning end surface.
Furthermore, the positioning end face component also comprises an upper positioning ring, a lower positioning ring and a cushion cover;
a plurality of through holes are axially formed in the lower vertebral body, and a plurality of cushion covers are connected with the through holes in a sliding mode;
the upper vertebral body, the cushion cover and the lower positioning ring are fixedly connected into a whole from top to bottom in sequence;
the upper positioning ring is fixedly connected above the lower positioning ring;
the top surface of the upper positioning ring is the positioning end surface, and the positioning end surface is positioned below the steel ball;
the upper positioning ring is movably sleeved on the outer side of the lower vertebral body.
In the technical scheme, the dead weight self-centering mechanism of the brake disc provided by the utility model has the advantages that the movable shaft is vertically arranged, the product piece is horizontally hoisted by the hoist and placed into the checking fixture conveniently, after the product piece is placed into the checking fixture, the product positioning surface falls onto the positioning end surface, the steel ball is ejected out by the dead weight of the product, the positioning hole is positioned and tensioned, and the accurate positioning of the product is ensured; when the steel ball bearing is disassembled, the steel ball is restored to the initial position and separated from the positioning hole due to the fact that the product is lifted, the positioning hole of the product and the movable shaft sleeved with the positioning hole are easy to separate due to the fact that the steel ball is not influenced by self weight.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a schematic structural view of a brake disc;
fig. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic structural view of a steel ball expansion core structure;
fig. 4 is a structural schematic diagram of the self-weight self-centering mechanism after the brake disc is assembled.
Description of reference numerals:
1. a base; 2. a movable shaft; 3. a steel ball core expanding mechanism; 4. positioning a plate; 5. positioning the gasket; 6. a nut; 8. a limiting shaft;
31. a superior vertebral body; 32. the inferior vertebral body; 33. steel balls; 34. a spring; 35. carrying out top thread;
30. an annular groove; 301. a movable opening; 311. a first support surface; 312. a second support surface; 313. A third conical surface; 321. feeding a steel ball retainer; 322. a lower steel ball retainer; 323. a fourth conical surface;
41. an end face bearing; 42. an upper positioning ring; 43. a lower positioning ring; 44. a cushion cover;
70. positioning the end face; 71. positioning holes; 72. and (6) positioning the surface.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the self-weight self-centering mechanism of a brake disc according to the embodiment of the present invention is mainly used for a tool, a checking fixture, and a fixture that need to position the brake disc, and the positioning is performed by using a positioning hole 71 of the brake disc and a positioning surface 72 perpendicular to the positioning hole 71. As shown in fig. 3, the mechanism mainly includes:
a base 1 for supporting a self-centering mechanism;
a detection end above the movable shaft 2 is sleeved with and supports a brake disc through a steel ball core expanding structure 3, and the movable shaft 2 is vertically connected with the base 1 in a sliding manner;
the steel ball core expanding structure 3 comprises an upper cone 31 fixed with the detection end, a lower cone 32, a plurality of steel balls 33 and an annular groove 30 for accommodating the steel balls 33;
a plurality of steel balls 33 are arranged in the circumferential direction of the positioning hole 71 of the brake disc, the steel balls 33 being capable of moving radially outward of the brake disc in the annular groove 30 for contact with the positioning hole 71 of the brake disc;
the lower vertebral body 32 supports the upper vertebral body 31 with a gap through a spring 34;
the positioning plate 4 is fixedly connected with the upper part of the base 1, the lower part of the positioning plate 4 is sleeved outside the positioning end below the movable shaft 2, and the upper part of the positioning plate 4 supports the lower vertebral body 32;
a locating end surface part rigidly connected to the upper vertebral body 31 providing a locating end surface 70 in contact with the locating surface of the brake disc;
the positioning end face 70 of the datum plane component is contacted with the positioning face 72 of the brake disc and then moves downwards, so that the upper cone body 31 is driven to downwards contact with the lower cone body 32, meanwhile, the upper cone body 31 can drive the steel balls 33 to move along the radial outer side of the positioning hole 71 of the brake disc, and the positioning hole 71 is positioned and tensioned.
Specifically, the mechanism working principle is as follows: this brake disc adopts terminal surface and hole location, most brake disc and wheel hub adopt hole and interior terminal surface location, the operator rotates the product spare with the hand when the tradition is examined utensil and is adopted fixed dimension axle and terminal surface location brake disc measurement, be sliding friction between product spare and the location axle, because product spare hole size slightly is less than location axle size, the biggest entity size of general product hole is little 0.05mm, product spare self weight is heavy, tradition is examined the utensil and is adopted the slope overall arrangement again, it is very difficult when adopting the hoist to put into product spare and examine the utensil, for avoiding above-mentioned problem, new structure adopts steel ball centering mechanism, before not putting into the utensil of examining of taking self-centering mechanism with product spare like this, the loose axle size is less than product spare hole size preferred 0.5mm, the initial assembly clearance of product and location axle has been increased. The positioning shaft, namely the movable shaft 2, is vertically arranged, the product piece is horizontally hung by the lifting appliance and is placed into the checking fixture with the self-centering mechanism, the lifting appliance is very convenient, after the product piece is placed into the checking fixture, the product positioning surface 72 falls onto the positioning end surface 70, the steel balls are ejected out by the dead weight of the product, and then the positioning hole 70 is positioned and tensioned.
Specifically, the movable shaft 2 is arranged perpendicular to the base, and the measuring end is arranged above the movable shaft 2 and the positioning end is arranged below the movable shaft. Wherein, the measuring end penetrates through the steel ball core expanding structure 3 comprising the upper cone 31 and the lower cone 32 in sequence, and the upper cone 31 and the movable shaft 2 are fixedly connected through common parts such as mechanical common screws and the like. The positioning end and the positioning plate 4 are slidably connected with each other by forming a through hole matched with the positioning end at a corresponding position of the positioning plate 4, and the positioning plate 4 is fixedly connected with the base 1 through mechanical common parts such as screws and the like. The lower part of the positioning plate 4 is connected with the base 1, the upper part of the positioning plate 4 supports the lower cone 32, and a spring 34 is abutted between the bottom surface of the upper cone 31 and the top surface of the lower cone 32.
When the brake disc is not initially placed, the lower vertebral body 32 elastically supports the upper vertebral body 31, and there is a gap between the top surface of the upper vertebral body 31 and the bottom surface of the lower vertebral body 32 due to the spring. The middle of the lower vertebral body 32 is provided with a through hole which is sleeved outside the movable shaft 2, so that the lower vertebral body 32 is conveniently connected with the movable shaft 32 in a sliding way.
The upper vertebral body 31 and the lower vertebral body 32 are cylindrical as a whole and are sleeved in the brake disc; an annular groove is arranged on the radial outer side of the cylindrical surface, and preferably, an annular groove is arranged on the outer upper part of the lower cone 32 for circumferentially arranging the steel balls 33. The annular groove 30 has a movable opening with adjustable distance between the upper opening and the lower opening, so that the steel ball 33 can partially extend out of and return into the annular groove 30. The steel ball core expanding structure 3 is mainly used for sleeving and supporting a brake disc, and after a positioning surface 72 of the brake disc is contacted with the positioning end surface 70, the positioning end surface 70 moves downwards under the influence of the weight of the brake disc; the positioning end face component is fixedly connected with the upper vertebral body 31, the positioning end face 70 drives the upper vertebral body 31 to move downwards, elastic supporting elements such as springs and the like between the upper vertebral body 31 and the lower vertebral body 32 are compressed, and the distance between the two is reduced. Preferably, superior vertebral body 31 is moved into contact with inferior vertebral body 32, eliminating the initial space between the two. In order to facilitate the detachment of the brake disc and prevent the movable shaft 2 from moving upwards along with the brake disc and separating from the positioning plate 4 and the lower cone 32, a limiting component known in the mechanical field should be arranged on the movable shaft 2 to limit the axial movement distance of the movable shaft 2. After the positioning surface 72 of the brake disc is separated from the positioning end surface 70, the positioning end surface 70 is not stressed by the self-weight pressure of the product, the upper vertebral body 31 is restored to the original position due to the action of the spring, the distance between the upper vertebral body 31 and the lower vertebral body 32 is increased, and the steel balls 33 also extend back into the annular groove 30.
The positioning end of the movable shaft 2 is sleeved with a limiting part, and the limiting part comprises a limiting shaft 8 and a positioning gasket 5 which are fixed below the positioning end;
the positioning gasket 5 is arranged above the limiting shaft 8 in a penetrating way;
the lower part of the limiting shaft is connected with a positioning gasket 5 in a clamping way below the positioning plate 4 through a connecting nut 6.
Specifically, the diameter of the limiting shaft 8 is smaller than that of the positioning end. Preferably, the limiting shaft 2 and the fixed shaft are integrally formed, i.e. the movable shaft 2 is a stepped shaft. The diameter of the through hole of the positioning gasket 5 is larger than that of the through hole used for sleeving the positioning end on the positioning plate 4, so that the movable shaft 2 is limited when moving upwards. Preferably, the double nut 6 is used for fixing the positioning pad 5 more firmly, and the positioning pad 5 is clamped between the double nut and the positioning plate 4 at the initial position when the brake disc is not placed, as shown in fig. 4, so that the brake disc is ensured to be separated from the self-centering mechanism. On the other hand, the size of the gap between the upper vertebral body 31 and the lower vertebral body 32 can be adjusted by adjusting the thickness of the spacer 5 or the fastening position of the nut 6 to the fixing end. When the brake disc falls down, the movable shaft moves downwards to drive the positioning gasket 5 to move downwards.
Preferably, for the fixture or the check tool which only needs to axially position the brake disc, the positioning end is axially and slidably connected with the positioning plate 4. However, in order to ensure the stable operation of the movable shaft 2, the positioning plate 4 may be connected to the movable shaft 2 through a conventional mechanical connecting member for axial movement, such as a ball-sealed bearing. The positioning plate 4 is fixedly connected with the lower vertebral body 32.
Preferably, the positioning end is rotatably connected to the positioning plate 4 for positioning of the rotating brake disc, which is required for measuring form and position tolerances, etc. associated with the brake disc.
Specifically, the positioning end of the movable shaft 2 is rotatably connected with the positioning plate 4 through connecting pieces such as bearings and the like; the upper surface of the positioning plate 4 supports the lower cone 32 through the end face bearing 41. The end face bearing 41 and the movable shaft 2 are connected in a sliding fit mode through a through hole and a shaft, the steel ball core expanding structure 3 is arranged above the end face bearing 41, and an operator can rotate a product to measure conveniently.
The upper vertebral body 31 is provided with a screw hole, a jackscrew 35 is arranged above the screw hole, and a spring 34 is arranged below the screw hole;
the length of the spring 34 can be adjusted by screwing the jack screw 35.
Specifically, one end of the spring 34 is attached below the jackscrew, and the other end of the spring 34 is attached to the upper surface of the inferior vertebral body 32. The set of the jackscrew 35 facilitates adjustment of the spring force of the spring 34 to adjust the gap between the superior vertebral body 31 and the inferior vertebral body 32.
Preferably, a plurality of screw holes are uniformly distributed in the circumferential direction of the upper cone 31, and each screw hole is used for placing a corresponding spring 34, so that the upper cone 31 can support the positioning ring component 30 more stably.
The upper cone 31 can convert the up-and-down motion into a linear reciprocating motion device through the mechanical field, and pushes the steel ball 33 to move. Preferably, the upper cone 31 can drive the steel balls 33 to move along the radial outer side of the positioning hole 71 of the brake disc by using a slope driving means in the mechanical field, so that the positioning hole 71 is positioned and tensioned. Thus, the structure is simple by the contact of the inclined plane and the steel ball in the annular groove 30. The ramp may communicate with the annular groove 30 to contact the steel ball, or the ramp may be formed directly as part of the annular groove 30.
The outer edge of the bottom surface of the upper cone 31 is provided with a first supporting surface 311 which can be tangent with the upper part of the steel ball 33;
the first support surface 311 is a conical surface, and the downward movement thereof can drive the steel ball 33 to move along the radial outside of the positioning hole 71.
Specifically, the outer edge of the bottom surface of the upper cone 31 is provided with a first supporting surface 311 which can be tangent to the upper part of the steel ball 33, the first supporting surface 311 is a conical surface, and the downward movement of the first supporting surface 311 can drive the steel ball 33 to move along the radial outer side of the positioning hole; the outer edge of the bottom surface of the upper cone 31 is conical, and the diameter of the upper cone 31 is smaller closer to the bottom surface. The gap between the upper cone 31 and the lower cone 32 is reduced until the upper cone contacts with the lower cone due to the gravity of the brake disc, and the contact radius between the first support surface 321 and the upper part of the steel ball 33 is continuously changed and is increased, so that the steel ball 33 is pushed to eject outwards in the radial direction.
The outer edge of the top surface of the lower cone 32 is provided with a second supporting surface 321 below the supporting steel ball 33;
the steel ball core expanding structure 3 also comprises a lower steel ball retainer 322 movably sleeved above the lower cone 32, and a gap is formed between the lower steel ball retainer 322 and the lower cone 32 in the vertical and axial directions;
the steel ball core expanding structure 3 also comprises an upper steel ball retainer 312 movably sleeved below the upper cone 31, and a gap is formed between the upper steel ball retainer 312 and the upper cone 31 in the vertical and axial directions;
a fourth conical surface 323 is arranged above the lower steel ball retainer 322, and a third conical surface 313 is arranged above the upper steel ball retainer 312;
the first support surface 311, the second support surface 321, the fourth conical surface 323 and the third conical surface 313 together form an annular groove 30;
the upper ball retainer 312 and the lower ball retainer 322 have a certain distance between the upper and lower radial edges to form a movable opening 301 for the ball 33 to extend out.
Specifically, the outer edge of the top surface of the lower cone 32 is provided with a second supporting surface 321 having a conical shape, and the diameter of the second supporting surface 321 near the top surface is large for supporting the steel ball 33.
Preferably, the gaps between the lower steel ball retainer 322, the lower steel ball retainer 322 and the positioning hole 71 are 0.5 mm.
Specifically, the second supporting surface 321 and the first supporting surface 311 form an approximately V-shaped opening, which faces the positioning hole outward and can be used for accommodating one surface of the steel ball 33 close to the movable shaft. Preferably, the second supporting surface 321 is axially and radially symmetrical to the first supporting surface 311. A second support surface 321, a first support surface 311, and a third conical surface 323, the third conical surface 313 forming an annular groove 30 that receives the steel ball 33.
The steel balls 33 are arranged between the upper cone 31 and the lower cone 32, the steel balls 33 are uniformly distributed on the second supporting surface 321 along the circumferential direction of the lower cone, preferably, each steel ball 33 is closely arranged, and the steel balls are arranged in the circumferential direction of the full ball without intervals. The support of the steel balls 33 can also be found in the technical solutions common in the bearing field, and will not be described in detail here.
Preferably, the third conical surface 313 and the fourth conical surface 323, and the lower ball retainer 322 and the upper ball retainer 312 are arranged in a mirror symmetry manner, the third conical surface 313 and the fourth conical surface 323 are arranged in a manner that the edge of the bottom surface of the upper ball retainer 312 is thicker than the edge of the top surface, and the edge of the top surface of the lower ball retainer 322 is thicker than the edge of the top surface. The lower steel ball retainer 322 and the upper steel ball retainer 312 are annular as a whole, the lower cone 32 is provided with a step surface clamped below the lower steel ball retainer 322, namely, an annular groove with a rhombic section is formed in the middle of the outer wall surface of the whole of the upper cone 31 and the lower cone 32, and the annular groove is used for accommodating the two steel ball retainers through a press-fit means. The upper part of the lower ball retainer 322 is provided with a conical surface, i.e. a third conical surface, on the side close to the balls 33, and the structure of the upper ball retainer 312 is similar to that described here and is not described again. The steel ball 33 is sandwiched between the third conical surface 313 and the fourth conical surface 323. The outer diameters of the lower steel ball retainer 322 and the upper steel ball retainer 312 are smaller than the positioning hole 71. When the first supporting surface 311 drives the steel ball 33 to approach the wall of the positioning hole 71 for ejection, the contact radius between the third conical surface 313 and the fourth conical surface 323 and the steel ball 33 changes continuously, the steel ball 33 and the contact radius thereof become smaller and smaller, the steel ball 33 pushes the steel ball 33 up and down, and the lower steel ball holder 322 and the upper steel ball holder 312 contact with the corresponding upper cone 31 and the corresponding lower cone 32 respectively. The third conical surface 313 and the fourth conical surface 323 have a supporting function and a limiting function on the steel ball 33, so that the steel ball 33 is prevented from being separated from the annular groove 30. Specifically, the movable opening 301 is formed on the radial outer side of the third conical surface 313 and the fourth conical surface 323, and the upper and lower movable distances of the lower steel ball retainer 322 and the upper steel ball retainer 312 are both limited by the corresponding upper cone 31 and the lower cone 32, so that the upper and lower opening distances of the movable opening 301 are limited, and the extending distance of the steel ball 33 can be ensured.
The positioning end face part also comprises an upper positioning ring 42, a lower positioning ring 43 and a cushion cover 44;
the lower vertebral body 32 is axially provided with a plurality of through holes, and a plurality of cushion covers 44 are connected with the through holes in a sliding way;
the upper vertebral body 31, the cushion cover 44 and the lower positioning ring 43 are fixedly connected into a whole from top to bottom in sequence;
the upper positioning ring 42 is fixedly connected to the upper positioning ring 42 above the lower positioning ring 43 and is located outside the superior vertebral body 31, and the upper positioning ring 42 provides a positioning end surface 70 contacting the positioning surface.
Specifically, the product location benchmark is the hole, it is easier to realize that locating hole and interior terminal surface expand the heart structure through the steel ball promptly, the brake disc requires terminal surface and hole location, it realizes that the steel ball is ejecting and the hole location to go up centrum downstream, but must guarantee still that go up under the prerequisite of holding ring and brake disc terminal surface location, in order to realize the location of product requirement, go up holding ring and last centrum must a whole just can the linkage, in order to reach above-mentioned purpose, a plurality of through-holes of circumference equipartition processing on the centrum down, and be equipped with a plurality of cushions 44 through these holes, the external diameter of cushion 44 is less than a plurality of through-hole internal diameters on the centrum down. The upper cone 31, the cushion cover 44 and the lower positioning ring 43 are fastened into a whole by screws installed from the upper cone 31, then the upper positioning ring 42 and the lower positioning ring 43 are fastened into a whole by screws installed on the upper positioning ring 42, the upper cone 31 and the lower cone 32 are assembled with an upper steel ball holder and a lower steel ball holder which form a ring groove with a first supporting surface and a second supporting surface and limit steel balls in the ring groove, the upper cone 31 is also processed with screw holes which are used for assembling a spring 34 and a top screw 35, when the product is not measured, under the spring force of the spring 34, the distance between the upper cone 31 and the lower cone 32 is separated, the separation size is regulated by a double nut 6 and a positioning gasket 5, when the distance between the upper cone 31 and the lower cone 32 is separated, the diameter of the upper and lower tangent positions formed by the steel balls and the first supporting surface and the second supporting surface is reduced, the product can be easily put on a movable shaft, when a product is placed on the end face of the brake disc and falls on the upper positioning ring 43, under the action of the gravity of the brake disc, the distance between the upper cone 31 and the lower cone 32 is reduced, the contact diameter of the steel ball at the upper conical surface and the lower conical surface and the tangent position of the steel ball is increased under the action of the upper conical surface and the lower conical surface, and the steel ball is not stable until the steel ball is propped against the inner hole of the brake disc.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. A dead weight self-centering mechanism of a brake disc, comprising:
a base (1) to support the self-centering mechanism;
the detection end above the movable shaft (2) is sleeved with and supports the brake disc through a steel ball core expanding structure (3), and the movable shaft (2) is vertically connected with the base (1) in a sliding manner;
the steel ball core expanding structure (3) comprises an upper cone (31) fixed with the detection end, a lower cone (32), a plurality of steel balls (33) and an annular groove (30) for accommodating the steel balls (33);
a plurality of the steel balls (33) are arranged in the circumferential direction of the positioning hole (71) of the brake disc, and the steel balls (33) can move in the annular groove (30) along the radial direction of the brake disc so as to be capable of contacting with the positioning hole (71) of the brake disc;
the lower vertebral body (32) supports the upper vertebral body (31) through a spring (34) with a gap;
the positioning plate (4) is fixedly connected with the upper part of the base (1), the lower part of the positioning plate (4) is sleeved outside the positioning end below the movable shaft (2), and the upper part of the positioning plate (4) supports the lower cone (32);
a locating end surface part rigidly connected to the upper vertebral body (31) providing a locating end surface (70) in contact with a locating surface of the brake disc;
the positioning end face (70) is contacted with a positioning face (72) of the brake disc and then moves downwards to drive the upper cone body (31) to move downwards, the distance between the upper cone body and the lower cone body (32) is reduced, and meanwhile, the upper cone body (31) can drive the steel balls (33) to move along the radial outer side of a positioning hole (71) of the brake disc so as to position and tension the positioning hole (71);
the upper cone body (31) moves upwards to drive the steel balls (33) to move along the radial inner side of the positioning hole (71) of the brake disc.
2. The self-centering mechanism according to claim 1, characterized in that the positioning end of the movable shaft (2) is rotatably connected with the positioning plate (4);
the upper surface of the positioning plate (4) supports the lower cone (32) through an end surface bearing (41).
3. The self-centering mechanism according to claim 1, characterized in that a limiting component is sleeved on the positioning end of the movable shaft (2), and the limiting component comprises a limiting shaft (8) and a positioning gasket (5) which are fixed below the positioning end;
a positioning gasket (5) penetrates through the upper part of the limiting shaft (8);
the lower part of the limiting shaft is connected with the positioning gasket (5) in a clamping manner through a connecting nut (6) below the positioning plate (4).
4. The self-centering mechanism according to claim 1, wherein said superior vertebral body (31) is provided with a threaded hole, above which a terminal screw (35) is mounted, below which said spring (34) is mounted;
the length of the spring (34) can be adjusted by screwing the jackscrew (35).
5. The self-centering mechanism according to claim 1, wherein the outer edge of the bottom surface of the upper cone (31) is provided with a first support surface (311) which can be tangent to the steel ball (33) above;
the first supporting surface (311) is a conical surface, and the vertical movement of the first supporting surface can drive the steel balls (33) to move along the radial direction of the positioning hole (71).
6. The self-centering mechanism according to claim 5, characterized in that the outer edge of the top surface of the lower cone (32) is provided with a second support surface (321) for supporting the steel balls (33) therebelow;
the steel ball core expanding structure (3) further comprises a lower steel ball retainer (322) movably sleeved above the lower cone body (32), and a gap is formed between the lower steel ball retainer (322) and the lower cone body (32) in the axial direction;
the steel ball core expanding structure (3) further comprises an upper steel ball retainer (312) movably sleeved below the upper cone body (31), and a gap is formed between the upper steel ball retainer (312) and the upper cone body (31) in the axial direction;
a fourth conical surface (323) is arranged above the lower steel ball retainer (322), and a third conical surface (313) is arranged above the upper steel ball retainer (312);
the first supporting surface (311), the second supporting surface (321), the fourth conical surface (323) and the third conical surface (313) jointly form the annular groove (30);
a certain interval is arranged between the radial edges of the upper steel ball retainer (312) and the lower steel ball retainer (322) to form a movable opening (301) for the steel balls (33) to extend out.
7. The self-centering mechanism of claim 1, wherein said locating end face member further comprises an upper locating ring (42), a lower locating ring (43), and a pillow cover (44);
a plurality of through holes are axially formed in the lower vertebral body (32), and a plurality of cushion covers (44) are connected with the through holes in a sliding mode;
the upper vertebral body (31), the cushion cover (44) and the lower positioning ring (43) are fixedly connected into a whole from top to bottom in sequence;
the upper positioning ring (42) is fixedly connected above the lower positioning ring (43);
the top surface of the upper positioning ring (42) is the positioning end surface (70), and the positioning end surface (70) is positioned below the steel ball (33);
the upper positioning ring (42) is movably sleeved outside the lower vertebral body (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020926536.7U CN212763001U (en) | 2020-05-27 | 2020-05-27 | Dead weight self-centering mechanism of brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020926536.7U CN212763001U (en) | 2020-05-27 | 2020-05-27 | Dead weight self-centering mechanism of brake disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212763001U true CN212763001U (en) | 2021-03-23 |
Family
ID=75069324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020926536.7U Active CN212763001U (en) | 2020-05-27 | 2020-05-27 | Dead weight self-centering mechanism of brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212763001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732971A (en) * | 2020-05-27 | 2021-12-03 | 长春市春求科技开发有限公司 | Dead weight self-centering mechanism of brake disc |
-
2020
- 2020-05-27 CN CN202020926536.7U patent/CN212763001U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732971A (en) * | 2020-05-27 | 2021-12-03 | 长春市春求科技开发有限公司 | Dead weight self-centering mechanism of brake disc |
| CN113732971B (en) * | 2020-05-27 | 2024-09-20 | 长春市春求科技开发有限公司 | Self-centering mechanism for dead weight of brake disc |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212763001U (en) | Dead weight self-centering mechanism of brake disc | |
| CN108151989B (en) | Rigidity detection device for numerical control horizontal servo tool rest and use method | |
| CN111660221A (en) | Floating pressing mechanism and using method thereof | |
| CN210588877U (en) | Material pressing mechanism of bearing ring detection machine | |
| CN113732971B (en) | Self-centering mechanism for dead weight of brake disc | |
| CN203274616U (en) | Device for detecting run-out of surface of flange of cylinder | |
| CN204913224U (en) | Pressure device and use this pressure device's pressure equipment device | |
| CN213748360U (en) | Short cylindrical roller bearing play measuring device | |
| CN116026587B (en) | Detection device for ultimate bearing strength of bearing set | |
| CN212620564U (en) | Comprehensive measuring tool for measuring size of deformable part | |
| CN219714212U (en) | Position degree gauge | |
| CN202805104U (en) | Manual jig used for installing small diameter axletree | |
| CN208520318U (en) | A kind of brake disc and armature end face plane degree detection device of forklift brake | |
| CN204035947U (en) | A kind of assistant pressing tool press-fited for axle end bearing | |
| CN216898712U (en) | Detection tool for disc-shaped workpiece with central hole | |
| CN112577682A (en) | Tapered roller bearing axial rigidity measures auxiliary fixtures | |
| CN216361741U (en) | Adjustable performance detection device for machining of cylindrical roller bearing ring | |
| CN213120391U (en) | Special detection tool for detecting axial clearance value of third-generation hub bearing | |
| CN210499950U (en) | Centering clamping device | |
| CN112975843A (en) | Device for adjusting assembly clearance of aircraft wheel bearing | |
| JP6798862B2 (en) | Tire dynamic balance and uniformity measuring device | |
| CN214476746U (en) | Magnetizing device for magnetizing magnetic signal wheel | |
| CN112276858B (en) | Full ball bearing dismounting device and full ball bearing dismounting method | |
| CN220853367U (en) | Radial play detection device of bearing retainer | |
| JP2016161404A (en) | Chucking device, and vibration inspection apparatus with the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211123 Address after: 130000 room 1409, Hefu Plaza, No. 1833, Zili West Street, Road Park, Changchun City, Jilin Province Patentee after: Jilin Zhonghe measurement and Testing Co.,Ltd. Address before: No.206, software Third Road, Changchun high tech Development Zone, Jilin Province, 130000 Patentee before: CHANGCHUN CHUNQIU TECHNOLOGY DEVELOPMENT CO.,LTD. |
|
| TR01 | Transfer of patent right |